fall back ...

daylight saving time (DST), also known as daylight savings time or daylight time (the United States and Canada), and summer time (United Kingdom, European Union, and some others), is the practice of advancing clocks (typically by one hour) during warmer months so that darkness falls at a later clock time. The typical implementation of DST is to set clocks forward by one hour in the spring ("spring forward") and set clocks back by one hour in autumn ("fall back") to return to standard time. As a result, there is one 23-hour day in late winter or early spring and one 25-hour day in the autumn. The idea of aligning waking hours to daylight hours to conserve candles was first proposed in 1784 by American Benjamin Franklin. In a satirical letter to the editor of The Journal of Paris, the American inventor suggested that waking up earlier in the summer would economize candle usage and calculated considerable savings. DST clock shifts sometimes complicate timekeeping and can disrupt travel, billing, record keeping, medical devices, and sleep patterns. Computer software generally adjusts clocks automatically. prints available. s

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